Due to the large number of degrees of freedom offered by nanoscale scatterers, a single flat optic can project different images at different distances depending on the polarization of the light, opening up opportunities for optical encryption and augmented reality systems.

中文翻译：

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使用平面光学器件的偏振控制光学全息术。

由于纳米级散射体提供了大量的自由度，单个平面光学器件可以根据光的偏振在不同的距离投射不同的图像，从而为光学加密和增强现实系统提供了机会。